Perhaps you should try some spelling variations:
"serie estudios urbano." » "serie estudios urbanos.", "serie estudio urbano.", "serie estudios peruanos."
"series estudio urbanos." » "series estudios urbanos.", "series estudio urbano.", "series estudios peruanos.", "serie estudio urbanos.", "senales estudio urbanos."
"serie studias urbanos." » "serie estudios urbanos.", "serie studia urbanos.", "series estudios urbanos.", "serie guias urbanos."

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("serie estudios urbano.") or ("series estudio urbanos."))) or ("serie studias urbanos."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie estudios urbano.") OR ("series estudio urbanos."))) OR ("serie studias urbanos.")).
• Removing quotes may allow a broader search: (((( serie estudios urbano. ) or ( series estudio urbanos. ))) or ( serie studias urbanos. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie estudios urbano.") or ("series estudio urbanos."))) or ("serie studias urbanos."))*.